Zero-Master

Zero-Master is a Norwegian Doom speedrunner who, as of June 2023, submitted more than 250 demos to the Doom Speed Demo Archive. Together with Ryan Krafnick (Kraflab), Zero-Master also created and maintains the DSDA website.

Speedrunning achievements
Zero-Master was the first player who completed the UV pacifist runs for the following maps:
 * Against Thee Wickedly from Thy Flesh Consumed.
 * Underhalls from Doom II. The time of run is 20:57.
 * Icon of Sin from Doom II (tool-assisted run).
 * Metal from TNT: Evilution (using void glide).
 * Ballistyx from TNT: Evilution (tool-assisted run).
 * Caughtyard from The Plutonia Experiment.

He completed Nightmare! and NM100S runs for TNT: Evilution and The Plutonia Experiment. For TNT, he became the first ever player who completed such runs.

He also was the first player who used the pain elemental to get broken secrets on the Industrial Zone map from Doom II (during UV max run) and the Bunker map from The Plutonia Experiment (during NM100S run). After this he pulled off the first DOOM II NS Run with getting 100% secrets for all maps. In 2017 he discovered the zero press.

In August 2023, Zero Master claimed the first ever 100%-kill Ultra-Violence run of Phobos Anomaly, in which he managed to kill every monster on the level, including in the final death-exit room. The run clocked at 1:51.57, making it slower than the UV Max record on Doom Speed Demo Archive, where the requirement to kill monsters in the final room was waived.

Zero-Master has additionally released some tool-assisted runs. Perhaps the most ambitious of these was the UV max of the infamous Nuts map, for which killing all of the 850 cyberdemons can only be accomplished by amassing a trail of over 70,000 revenant homing missiles. This ended up requiring Zero-Master to create precise input macros to kite the rockets, and the automated macro portion of the run took 23 days to execute on his laptop. After manually completing the run, he made a lengthy video about it. In addition, the speedrunner named Karl Jobst made a video explaining both the run and the larger context of how unique it is.

Zero-Master also speedruns the modern Doom games. He had the world's first successful Ultra-Nightmare 100% run of Doom 2016; this video on his YouTube channel has more than 2 million views. His 100% Ultra-Nightmare run of Doom Eternal has been viewed more than 1 million times.

Current Compet-n records
The following data was last verified in its entirety on July 17, 2020.

Level runs for the PWADs
Zero-Master holds one map record for Alien Vendetta.